[ci] add downgrade of nette/utils to use json_decode() for old PHP

Author: TomasVotruba

Diff for: .github/workflows/build.yml

@@ -113,6 +113,11 @@ jobs:
         if: matrix.php-version == '7.1' || matrix.php-version == '7.2' || matrix.php-version == '7.3'
         run: "composer require --dev phpunit/phpunit:^7.5.20 --update-with-dependencies"
 
+      # in PHP 7.1, the json_decode() 2nd parameter requires bool, while PHP 7.2 it's null|int
+      - name: "Downgrade nette/utils"
+        if: matrix.php-version == '7.1'
+        run: "composer require --dev nette/utils:^2.3 nette/forms:^2.4 --update-with-dependencies"
+
       - name: "Tests"
         run: "make tests"
 

Diff for: src/Type/Nette/JsonDecodeDynamicReturnTypeExtension.php

@@ -6,6 +6,7 @@
 use PhpParser\Node\Arg;
 use PhpParser\Node\Expr\ClassConstFetch;
 use PhpParser\Node\Expr\StaticCall;
+use PhpParser\Node\Identifier;
 use PhpParser\Node\Name;
 use PHPStan\Analyser\Scope;
 use PHPStan\Reflection\MethodReflection;
@@ -91,7 +92,7 @@ private function isForceArray(array $args): bool
 			$classConstFetch = $secondArg->value;
 
 			if ($classConstFetch->class instanceof Name) {
-				if (! $classConstFetch->name instanceof \PhpParser\Node\Identifier) {
+				if (! $classConstFetch->name instanceof Identifier) {
 					return false;
 				}